Expression of Mouse Ovarian Insulin Growth Factor System Components During Follicular Development and Atresia
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چکیده
منابع مشابه
Expression of transforming growth factor-alpha in the human ovary during follicular growth, regression and atresia.
The cytologic localization and cellular levels of TGF alpha in the human ovary during follicular growth and regression were examined by avidin/biotin immunoperoxidase techniques with a monoclonal antibody to TGF alpha. In primordial follicles, only the oocyte showed intense immunostaining for TGF alpha, whereas the flattened pregranulosa cells were negative for the immunostaining. The earliest ...
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Mammalian ovarian follicular development and atresia is closely regulated by the cross talk of cell death and cell survival signals, which include endocrine hormones (gonadotropins) and intra-ovarian regulators (gonadal steroids, cytokines and growth factors). The fate of the follicle is dependent on a delicate balance in the expression and actions of factors promoting follicular cell prolifera...
متن کاملGene expression of the insulin-like growth factor system during mouse kidney development.
Expression of the insulin-like growth factor (IGF) system was investigated in mouse renal development and physiology, using non radioactive in situ hybridization and quantitative RT-PCR. IGF-I mRNA levels increased after birth and were confined to distal tubules and peritubular capillaries in the outer medulla. IGF-II mRNA levels were high in developing kidneys and peaked after birth. The type ...
متن کاملOvarian Follicular Atresia
Throughout ovarian development and function in mammals, a highly orchestrated, periodic process known as follicular atresia occurs that destroys and eliminates follicles and oocytes from the ovary. Follicular atresia is pervasive. In humans, it is estimated to account for 99.9% of the loss of oocytes from development of the fetal ovary until reproductive senescence (Baker, 1963; Faddy et al., 1...
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The interactions of insulin-like growth factors (IGFs) with the type I IGF receptor are modulated by a family of high-affinity IGF binding proteins (IGFBPs). One of these, IGFBP2, demonstrates a striking spatiotemporal relationship with IGF-I during cerebellar and retinal development. IGF-I mRNA is transiently expressed in large projection neurons--cerebellar Purkinje and retinal ganglion cells...
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ژورنال
عنوان ژورنال: Endocrinology
سال: 1998
ISSN: 0013-7227
DOI: 10.1210/en.139.12.5205